But Yahoo sure has the early mover advantage over Gmail...
It takes more than good features to make people switch.. people who are methodox and orthodox for Yahoo!!!!
Man you should do something on the designing and UI of the site... its just not rocking enuf! :)
I'll suggest to get the site down for a week or two... re-design (seriously.. take care of colors and alignment.. content too.. maybe seek help from rock-events posters or sumthin lik tht) and then re-launch... because as per me, first impression is the last!